Home / 5,267.26-7,900.90-3,618.80

Finding the Fourth Proportional to 5,267.26, 7,900.90 and 3,618.80

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Solution

The fourth proportional to 5,267.26, 7,900.90 and 3,618.80 is: 5,428.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267.26 : 7,900.90 = 3,618.80 : x
  2. Step 2: Convert to fraction form
    5,267.26/7,900.90 = 3,618.80/x
  3. Step 3: Cross multiply
    5,267.26x = 7,900.90 × 3,618.80
  4. Step 4: Simplify right side
    5,267.26x = 28,591,776.92
  5. Step 5: Solve for x
    x = 28,591,776.92/5,267.26
  6. Step 6: Final answer
    x = 5,428.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.